FR2465026B1 - - Google Patents
Info
- Publication number
- FR2465026B1 FR2465026B1 FR8019697A FR8019697A FR2465026B1 FR 2465026 B1 FR2465026 B1 FR 2465026B1 FR 8019697 A FR8019697 A FR 8019697A FR 8019697 A FR8019697 A FR 8019697A FR 2465026 B1 FR2465026 B1 FR 2465026B1
- Authority
- FR
- France
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7907557A SE418628B (sv) | 1979-09-12 | 1979-09-12 | Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2465026A1 FR2465026A1 (fr) | 1981-03-20 |
| FR2465026B1 true FR2465026B1 (sv) | 1983-08-19 |
Family
ID=20338805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8019697A Granted FR2465026A1 (fr) | 1979-09-12 | 1980-09-12 | Procede pour reduire la teneur en resine pendant la preparation de pates de cellulose provenant de matieres lignocellulosiques et appareil pour sa mise en oeuvre |
Country Status (11)
| Country | Link |
|---|---|
| JP (1) | JPS5643496A (sv) |
| AT (1) | AT374512B (sv) |
| AU (1) | AU524841B2 (sv) |
| BR (1) | BR8005524A (sv) |
| CA (1) | CA1157209A (sv) |
| CH (1) | CH651083A5 (sv) |
| DE (1) | DE3034042C2 (sv) |
| FI (1) | FI68680C (sv) |
| FR (1) | FR2465026A1 (sv) |
| NO (1) | NO155498C (sv) |
| SE (1) | SE418628B (sv) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4444621A (en) * | 1980-11-21 | 1984-04-24 | Mo Och Domsjo Aktiebolag | Process and apparatus for the deresination and brightness improvement of cellulose pulp |
| SE8405128L (sv) * | 1984-10-15 | 1986-04-16 | Kamyr Ab | Behandling av hogutbytesmassa |
| SE502321C2 (sv) * | 1994-03-04 | 1995-10-02 | Kvaerner Pulping Tech | Förfarande vid ozonblekning av sulfitmassa |
| US5728265A (en) * | 1995-06-12 | 1998-03-17 | Henkel Corporation | Process for enhancing white liquor penetration into wood chips by contacting the chips with a mixture of the white liquor and a polymethylalkyl siloxane |
| FI20105799A0 (sv) | 2010-07-13 | 2010-07-13 | Olli Joutsimo | Förbättrad process för framställning av kemisk massa |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE84946C (sv) * | ||||
| DE363666C (de) * | 1918-01-23 | 1922-11-11 | Carl G Schwalbe Dr | Verfahren zur Entfernung von Harz, Fett, Wachs u. dgl. aus Pflanzenstoffen, insbesondere aus Holz und Holzzellstoffen |
| US2000562A (en) * | 1933-07-06 | 1935-05-07 | Patentaktiebolaget Grondal Ram | Process of removing resin from sulphite cellulose |
| US2224159A (en) * | 1937-09-27 | 1940-12-10 | Rayonier Inc | Process for purifying wood pulp |
-
1979
- 1979-09-12 SE SE7907557A patent/SE418628B/sv not_active IP Right Cessation
-
1980
- 1980-08-26 JP JP11824580A patent/JPS5643496A/ja active Granted
- 1980-08-29 BR BR8005524A patent/BR8005524A/pt not_active IP Right Cessation
- 1980-09-01 FI FI802742A patent/FI68680C/fi not_active IP Right Cessation
- 1980-09-05 CH CH6700/80A patent/CH651083A5/de not_active IP Right Cessation
- 1980-09-09 NO NO802658A patent/NO155498C/no unknown
- 1980-09-10 AU AU62195/80A patent/AU524841B2/en not_active Expired
- 1980-09-10 DE DE3034042A patent/DE3034042C2/de not_active Expired
- 1980-09-11 AT AT0457680A patent/AT374512B/de not_active IP Right Cessation
- 1980-09-12 FR FR8019697A patent/FR2465026A1/fr active Granted
- 1980-09-12 CA CA000360196A patent/CA1157209A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NO155498B (no) | 1986-12-29 |
| FI68680B (fi) | 1985-06-28 |
| CA1157209A (en) | 1983-11-22 |
| FI68680C (fi) | 1985-10-10 |
| NO802658L (no) | 1981-03-13 |
| FR2465026A1 (fr) | 1981-03-20 |
| SE418628B (sv) | 1981-06-15 |
| CH651083A5 (en) | 1985-08-30 |
| AU6219580A (en) | 1981-03-19 |
| JPH0114357B2 (sv) | 1989-03-10 |
| DE3034042A1 (de) | 1981-04-02 |
| FI802742A (fi) | 1981-03-13 |
| JPS5643496A (en) | 1981-04-22 |
| AU524841B2 (en) | 1982-10-07 |
| SE7907557L (sv) | 1981-03-13 |
| ATA457680A (de) | 1983-09-15 |
| AT374512B (de) | 1984-05-10 |
| DE3034042C2 (de) | 1985-08-22 |
| NO155498C (no) | 1994-11-21 |
| BR8005524A (pt) | 1981-03-17 |